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From: Tim Rentsch <tr.17687@z991.linuxsc.com>
Newsgroups: comp.arch
Subject: Re: Segments
Date: Mon, 27 Jan 2025 17:18:16 -0800
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Michael S <already5chosen@yahoo.com> writes:

> On Thu, 23 Jan 2025 08:14:52 GMT
> anton@mips.complang.tuwien.ac.at (Anton Ertl) wrote:
>
>> Michael S <already5chosen@yahoo.com> writes:
>>
>>> Not every system capable of running C supports signals.  I would
>>> think that those that support signals are not even majority.
>>
>> "man raise" tells me that raise() is C99.  "man signal" tells me
>> that signal() is C99.
>
> I would guess that it belongs to the part of the standard that
> defines requirements for hosted implementation.  [...]

Right.  Almost all of the standard library is not required
for freestanding implementations, and <signal.h> is not
among the required set.